Abstract
The Schiff base ligand, 1,2-diaminophenyl-N,N'-bis-(2-pyridinecarboxaldimine), (L) has been synthesized by the reaction of o-phenydo lenediamine and 2-pyridinecarboxaldehyde, and a series of mononuclear complexes of the type [ML(NO3)(2)] (M = Co(II), Ni(II), Cu(II) and Zn(II)] has also been synthesized. The formation of the Schiff base ligand (L) and its complexes have been envisaged from IR, H-1 and C-13 NMR studies. The absorption band observed in the electronic spectra and magnetic moment values confirm an octahedral environment around the metal ion. The molar conductivity measurements confirm the non-ionic character of these complexes. Fluorescence and UV-Vis absorption studies performed on the Cu(II) complex revealed a significant binding ability to DNA. (C) 2007 Elsevier Ltd. All rights reserved.